Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- 232 more...
- ItemJATGLoco_2504kAllentown - Great Northern Railway steam locomotive 2504 at Allentown, Washington, undated.
- ItemJATGLoco_2504lNBlackriverC1940 - Great Northern Railway steam locomotive 2504 at Black River, Washington in 1940.
- ItemJATGLoco_2504mBlackriverCWWII - Great Northern Railway steam locomotive 2504 at Black River, Washington, undated.
- ItemJATGLoco_2504NBlackriver - Great Northern Railway steam locomotive 2504 at Black River, Washington, undated.
- ItemJATGLoco_2504nBlackriverC1941 - Great Northern Railway steam locomotive 2504 at Black River, Washington in 1941.
- ItemJATGLoco_2504oBlackriverC1935 - Great Northern Railway steam locomotive 2504 at Black River, Washington in 1935.
- ItemJATGLoco_2510 - Great Northern Railway steam locomotive 2510 in Washington State, undated.
- ItemJATGLoco_2510aNBallardCPostWWII - Great Northern Railway steam locomotive 2510 at Ballard, Washington, undated.
- ItemJATGLoco_2512aSEA-EVT - Great Northern Railway steam locomotive 2512 in Washington State, undated.
- 88 more...